Modern economists and sociologists seldom present their ideas in terms of labor force. This category however, has an important function in Marxist- -Leninist theory of historical and modern socio-economic structures. On the other hand, none of the classics ever provided an unambiguous solution of the question of labor ownership in a socialist society. Theoreticians of the present day are viewing this question in aspect of the directly social work vs. labor force as a commodity problem. According to Marx teachings a possibility of labor sale by owners is a specific feature of private ownership. In the opinion of many Marxists labor is not considered to be a commodity under socialist conditions. Yet the proof of this thesis is not qu...